Hi everyone, I have An Acer Aspire 3690 Laptop (exact model no is Aspire 3694NWLMI. It has the Intel Celeron M 440 CPU @ 1.8 GHz, 533 MHz FSB, 1MB L2 cash. I upgraded the hard disk from 80 GB to 500 GB and ram from 512 MB to 2 GB DDR2 to run windows 7, but I want to use a DUAL CORE or CORE 2 DUO CPU CAN I ?